Host address
Encyclopedia
The host address, or the host ID portion of an IP address
, is the portion of the address used to identify hosts (any device requiring a Network Interface Card, such as a PC
or networked printer) on the network. The network ID, by contrast, is the portion of the address that refers to the network itself.
Example:
Your local network has an address of 192.168.1.0 /30 (using CIDR notation
for this subnet
).
Your network ID is the first 30 bits, in bold below. The host portion is the last two bits. By changing those two bits, you can create the following IP addresses:
11000000.10101000.00000001.000000 00 (192.168.1.0, the network address
)
11000000.10101000.00000001.000000 01 (192.168.1.1, the first usable address in the subnet)
11000000.10101000.00000001.000000 10 (192.168.1.2, the last usable address in the subnet)
11000000.10101000.00000001.000000 11 (192.168.1.3, the broadcast address
for the subnet)
IP address
An Internet Protocol address is a numerical label assigned to each device participating in a computer network that uses the Internet Protocol for communication. An IP address serves two principal functions: host or network interface identification and location addressing...
, is the portion of the address used to identify hosts (any device requiring a Network Interface Card, such as a PC
Personal computer
A personal computer is any general-purpose computer whose size, capabilities, and original sales price make it useful for individuals, and which is intended to be operated directly by an end-user with no intervening computer operator...
or networked printer) on the network. The network ID, by contrast, is the portion of the address that refers to the network itself.
Example:
Your local network has an address of 192.168.1.0 /30 (using CIDR notation
CIDR notation
CIDR notation is a compact specification of an Internet Protocol address and its associated routing prefix. Classless Inter-Domain Routing is an Internet Protocol address allocation and route aggregation methodology used within the Internet addressing architecture that replaced the IPv4 classful...
for this subnet
Subnetwork
A subnetwork, or subnet, is a logically visible subdivision of an IP network. The practice of dividing a network into subnetworks is called subnetting....
).
Your network ID is the first 30 bits, in bold below. The host portion is the last two bits. By changing those two bits, you can create the following IP addresses:
11000000.10101000.00000001.000000 00 (192.168.1.0, the network address
Network address
Network address may refer to:*Base address*Classful address*IP address*IPX address*Logical address*Network layer address,*X.25/X.21 address*MAC address-See also:*Autonomous system *Host address*Link layer*Subnet mask...
)
11000000.10101000.00000001.000000 01 (192.168.1.1, the first usable address in the subnet)
11000000.10101000.00000001.000000 10 (192.168.1.2, the last usable address in the subnet)
11000000.10101000.00000001.000000 11 (192.168.1.3, the broadcast address
Broadcast address
A broadcast address is a logical address at which all devices connected to a multiple-access communications network are enabled to receive datagrams...
for the subnet)